Service Caster #20 Series 1-1/2 inch expanding stem swivel casters with 4 inch semi steel wheel and total lock are a versatile caster choice. Featuring a zinc plated finish and double heat treated ball bearing raceways, these casters are ideal for light and medium duty racks, carts, equipment, and shop projects.
Wheel size: 4" x 1-1/4"
Wheel hardness: 70-80 Shore D Durometer
Expanding Stem Size: 1-1/2" x 2-11/16”
Mounting height: 5-1/8"
300 pound capacity per caster Wheel rotates on roller bearing (Use for manual speeds; 3 mph.)